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I have went through the video above and I couldn't get the understanding on how to apply the dynamic arrays onto the Learn and Earn Activity above without entering a formula to each cell.

I'm using my laptop that installed with "Linux Mint 19.1 Cinnamon" OS.
I'm using FreeOffice PlanMaker 2018 (rev 973.1103) 64bit.
It is an alternate version of Excel for my Linux OS laptop.

ah, so you don't have the dynamic arrays feature in the package you are using. you could try excel online :-)

Okay, I will use Excel online.